使用纹理分析对吞咽增稠剂进行表征——哪些信息可能有用?
Characterization of Dysphagia Thickeners Using Texture Analysis-What Information Can Be Useful?
作者信息
Baixauli Raquel, Bolivar-Prados Mireia, Ismael-Mohammed Kovan, Clavé Pere, Tárrega Amparo, Laguna Laura
机构信息
Institute of Agrochemistry and Food Technology (IATA, CSIC), 46980 Valencia, Spain.
Gastrointestinal Physiology Laboratory, Hospital de Mataró, Universitat Autònoma de Barcelona, 08304 Mataró, Spain.
出版信息
Gels. 2022 Jul 9;8(7):430. doi: 10.3390/gels8070430.
Besides shear viscosity, other texture parameters (adhesiveness or cohesiveness) might be relevant for safe swallowing in people suffering from oropharyngeal dysphagia. Shear viscosity is assessed through protocols developed using a viscometer or a rheometer. In contrast, protocols and instruments (capillary break-up rheometer) to assess adhesiveness and cohesiveness are less common and much less developed. Other equipment such as texture analyzers can provide useful information on food properties. Here, we aimed to explore different texture analyzer settings (type of test, probe, and protocol) to characterize four commercial dysphagia thickeners at the shear viscosity levels recommended by manufacturers. Among the tests used (extrusion or penetration) with the different probes (disc, cone and shape holder, sphere, or cylinder), cone extrusion provided information about adhesivity, disc extrusion about sample cohesiveness, and sphere about penetration and sample elasticity. The test speeds used influenced the results, but only one speed is needed as the different speeds provided the same fluid information; for easiness, it is proposed to use 1 mm/s. Comparing the texture analyzer results with viscosity values obtained at different shears, the texture analyzer parameters reflected information that differ from shear viscosity. This information could be relevant for the therapeutic effect of thickening products and food characterization.
除了剪切粘度外,其他质地参数(粘附性或内聚性)可能与患有口咽吞咽困难的人的安全吞咽有关。剪切粘度是通过使用粘度计或流变仪开发的方案来评估的。相比之下,用于评估粘附性和内聚性的方案和仪器(毛细管破裂流变仪)不太常见且发展程度较低。其他设备,如质地分析仪,可以提供有关食品特性的有用信息。在这里,我们旨在探索不同的质地分析仪设置(测试类型、探头和方案),以在制造商推荐的剪切粘度水平下表征四种商用吞咽困难增稠剂。在所使用的测试(挤压或穿透)中,使用不同的探头(圆盘、圆锥和形状保持器、球体或圆柱体),圆锥挤压提供了关于粘附性的信息,圆盘挤压提供了关于样品内聚性的信息,球体提供了关于穿透和样品弹性的信息。所使用的测试速度会影响结果,但由于不同速度提供相同的流体信息,因此只需要一种速度;为了方便起见,建议使用1毫米/秒。将质地分析仪的结果与在不同剪切力下获得的粘度值进行比较,质地分析仪参数反映的信息与剪切粘度不同。这些信息可能与增稠产品的治疗效果和食品特性有关。